Methods and apparatus for pdsch tci states activation-deactivation in multi-trp

ABSTRACT

Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving at least one MAC CE including a set of activated TCI IDs associated with a first set of TCI states and excluding a set of deactivated TCI IDs associated with a second set of TCI state, wherein: the set of activated TCI IDs are assigned to a plurality of codepoints which indicates values of the first set of TCI states in DCI, receiving the DCI, and receiving downlink data channel based on at least one or more TCI states of the first set of TCI states assigned to a codepoint of a plurality of codepoints associated with the DCI.

CROSS-REFERENCE TO RELATED APPLICATIONS

The current application claims priority to U.S. Provisional ApplicationNo. 62/806,625, filed on Feb. 15, 2019, entitled “Methods and Apparatusfor PDSCH TCI States Activation-Deactivation in Multi-TRP,” the contentsof which are incorporated by reference in their entireties.

BACKGROUND

Aspects of the present disclosure relate generally to wirelesscommunications, and more particularly, to apparatus and methods fortransmitting Transmission Configuration Indication (TCI) states.

Wireless communication networks are widely deployed to provide varioustypes of communication content such as voice, video, packet data,messaging, broadcast, and so on. These systems may be multiple-accesssystems capable of supporting communication with multiple users bysharing the available system resources (e.g., time, frequency, andpower). Examples of such multiple-access systems include code-divisionmultiple access (CDMA) systems, time-division multiple access (TDMA)systems, frequency-division multiple access (FDMA) systems, orthogonalfrequency-division multiple access (OFDMA) systems, and single-carrierfrequency division multiple access (SC-FDMA) systems.

These multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent wireless devices to communicate on a municipal, national,regional, and even global level. For example, a fifth generation (5G)wireless communications technology (which may be referred to as newradio (NR)) is envisaged to expand and support diverse usage scenariosand applications with respect to current mobile network generations. Inan aspect, 5G communications technology may include: enhanced mobilebroadband addressing human-centric use cases for access to multimediacontent, services and data; ultra-reliable-low latency communications(URLLC) with certain specifications for latency and reliability; andmassive machine type communications, which may allow a very large numberof connected devices and transmission of a relatively low volume ofnon-delay-sensitive information. As the demand for mobile broadbandaccess continues to increase, however, further improvements in NRcommunications technology and beyond may be desired.

In a NR communications network, beam indication may be implemented bythe network. For example, the network may inform connecting devices thatcertain downlink transmission may utilize the same transmission beams asthose used in the transmissions of reference signals (e.g.,transmissions using the same spatial filter).

In a communication network, a sending device, such as a base station(BS) may transmit a Media-Access-Control Control-Element (MAC CE) to areceiving device, such as another BS or a UE, to indicate the selectedTCI states relating to quasi co-location (QCL) information. In somecommunication networks, a cell may include a number of candidates forTCI states. Therefore, improvements in transmitting selected TCI statesmay be desired.

SUMMARY

The following presents a simplified summary of one or more aspects inorder to provide a basic understanding of such aspects. This summary isnot an extensive overview of all contemplated aspects, and is intendedto neither identify key or critical elements of all aspects nordelineate the scope of any or all aspects. Its sole purpose is topresent some concepts of one or more aspects in a simplified form as aprelude to the more detailed description that is presented later.

Aspects of the present disclosure include methods for receiving at leastone MAC CE including a set of activated TCI IDs associated with a firstset of TCI states and excluding a set of deactivated TCI IDs associatedwith a second set of TCI state, wherein: the set of activated TCI IDsare assigned to a plurality of codepoints which indicates values of thefirst set of TCI states in DCI, receiving the DCI, and receivingdownlink data channel based on at least one or more TCI states of thefirst set of TCI states assigned to a codepoint of a plurality ofcodepoints associated with the DCI.

Other aspects of the present disclosure include a UE having a memory, atransceiver, and one or more processors operatively coupled with thememory and the transceiver, the one or more processors configured toperform the steps of receiving at least one MAC CE including a set ofactivated TCI IDs associated with a first set of TCI states andexcluding a set of deactivated TCI IDs associated with a second set ofTCI state, wherein: the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the first set of TCIstates in DCI, receiving the DCI, and receiving downlink data channelbased on at least one or more TCI states of the first set of TCI statesassigned to a codepoint of a plurality of codepoints associated with theDCI.

An aspect of the present disclosure includes a UE including means forreceiving at least one MAC CE including a set of activated TCI IDsassociated with a first set of TCI states and excluding a set ofdeactivated TCI IDs associated with a second set of TCI state, wherein:the set of activated TCI IDs are assigned to a plurality of codepointswhich indicates values of the first set of TCI states in DCI, means forreceiving the DCI, and means for receiving downlink data channel basedon at least one or more TCI states of the first set of TCI statesassigned to a codepoint of a plurality of codepoints associated with theDCI.

Some aspects of the present disclosure include non-transitory computerreadable media having instructions stored therein that, when executed byone or more processors of a UE, cause the one or more processors toperform the steps of receiving at least one MAC CE including a set ofactivated TCI IDs associated with a first set of TCI states andexcluding a set of deactivated TCI IDs associated with a second set ofTCI state, wherein: the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the first set of TCIstates in DCI, receiving the DCI, and receiving downlink data channelbased on at least one or more TCI states of the first set of TCI statesassigned to a codepoint of a plurality of codepoints associated with theDCI.

Aspects of the present disclosure include methods for determining a setof activated TCI states wherein: the set of activated TCI states isassociated with a set of activated TCI IDs, the set of activated TCI IDsare assigned to a plurality of codepoints, the plurality of codepointsindicate values of the set of activated TCI states in DCI, generating atleast one MAC CE including the set of activated TCI IDs and excluding aset of deactivated TCI IDs associated with a set of deactivated TCIstates, wherein at least one of the set of activated TCI states isassigned to a codepoint of a plurality of codepoints, transmitting theat least one MAC CE, and transmitting the DCI.

Other aspects of the present disclosure include a BS having a memory, atransceiver, and one or more processors operatively coupled with thememory and the transceiver, the one or more processors configured toperform the steps of determining a set of activated TCI states wherein:the set of activated TCI states is associated with a set of activatedTCI IDs, the set of activated TCI IDs are assigned to a plurality ofcodepoints which indicates values of the set of activated TCI states inDCI, generating at least one MAC CE including the set of activated TCIIDs and excluding a set of deactivated TCI IDs associated with a set ofdeactivated TCI states, wherein at least one of the set of activated TCIstates is assigned to a codepoint of a plurality of codepoints,transmitting the at least one MAC CE, and transmitting the DCI.

An aspect of the present disclosure includes a BS including means fordetermining a set of activated TCI states wherein: the set of activatedTCI states is associated with a set of activated TCI IDs, the set ofactivated TCI IDs are assigned to a plurality of codepoints whichindicates values of the set of activated TCI states in DCI, means forgenerating at least one MAC CE including the set of activated TCI IDsand excluding a set of deactivated TCI IDs associated with a set ofdeactivated TCI states, wherein at least one of the set of activated TCIstates is assigned to a codepoint of a plurality of codepoints, meansfor transmitting the at least one MAC CE, and means for transmitting theDCI.

Some aspects of the present disclosure include non-transitory computerreadable media having instructions stored therein that, when executed byone or more processors of a UE, cause the one or more processors toperform the steps of determining a set of activated TCI states wherein:the set of activated TCI states is associated with a set of activatedTCI IDs, the set of activated TCI IDs are assigned to a plurality ofcodepoints which indicates values of the set of activated TCI states inDCI, generating at least one MAC CE including the set of activated TCIIDs and excluding a set of deactivated TCI IDs associated with a set ofdeactivated TCI states, wherein at least one of the set of activated TCIstates is assigned to a codepoint of a plurality of codepoints,transmitting the at least one MAC CE, and transmitting the DCI.

Certain aspects of the present disclosure may include methods,apparatuses, non-transitory computer readable media, and means forreceiving a first MAC CE and a second MAC CE, wherein: the first MAC CEincludes a first set of activated TCI IDs and excludes a set ofdeactivated TCI IDs, the second MAC CE includes a second set ofactivated TCI IDs and excludes the set of deactivated TCI IDs, the firstset of activated TCI IDs is associated with a first set of TCI states,the second set of activated TCI IDs is associated with a second set ofTCI states, the set of deactivated TCI IDs is associated with a set ofdeactivated TCI states, and one or more TCI IDs of the first set ofactivated TCI IDs or the second set of activated TCI IDs correspond to afirst codepoint of a plurality of codepoints, and receiving downlinkdata channel based on at least one of the first set of TCI states or thesecond set of TCI states associated with a second codepoint of aplurality of codepoints.

Some aspects of the present disclosure may include methods, apparatuses,non-transitory computer readable media, and means for receiving a firstMAC CE, wherein: the first MAC CE includes a set of activated TCI IDsand excludes a set of deactivated TCI IDs, the first set of activatedTCI IDs is associated with a first set of TCI states, and the set ofdeactivated TCI IDs is associated with a set of deactivated TCI states,receiving a second MAC CE, wherein: the second MAC CE includes aplurality of codepoints, and first set of TCI states correspond to theplurality of codepoints, and receiving downlink data channel based on atleast one of the first set of TCI states associated with a codepoint ofa plurality of codepoints.

To the accomplishment of the foregoing and related ends, the one or moreaspects comprise the features hereinafter fully described andparticularly pointed out in the claims. The following description andthe annexed drawings set forth in detail certain illustrative featuresof the one or more aspects. These features are indicative, however, ofbut a few of the various ways in which the principles of various aspectsmay be employed, and this description is intended to include all suchaspects and their equivalents.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosed aspects will hereinafter be described in conjunction withthe appended drawings, provided to illustrate and not to limit thedisclosed aspects, wherein like designations denote like elements, andin which:

FIG. 1 is a diagram illustrating an example of a wireless communicationssystem and an access network;

FIG. 2 is a schematic diagram of an example of a user equipment;

FIG. 3 is a schematic diagram of an example of a base station;

FIG. 4 is a schematic diagram of an example of a computer system forimplementing a core network;

FIG. 5 is an example of a functional diagram illustrating theservice-based architecture (SBA);

FIG. 6 is an example of a MAC CE including indications for the selectedTCI states;

FIG. 7 is another example of a MAC CE including indications for theselected TCI states;

FIG. 8 is an example of a MAC CE including indications for the selectedTCI states in a multi-TRP scheme;

FIG. 9 is still another example of a MAC CE including indications forthe selected TCI states in a multi-TRP scheme;

FIG. 10 is a process flow diagram of an example of receiving a MAC CEincluding indications for the selected TCI states in a multi-TRP scheme;and

FIG. 11 is a process flow diagram of an example of transmitting a MAC CEincluding indications for the selected TCI states in a multi-TRP scheme.

DETAILED DESCRIPTION

The detailed description set forth below in connection with the appendeddrawings is intended as a description of various configurations and isnot intended to represent the only configurations in which the conceptsdescribed herein may be practiced. The detailed description includesspecific details for the purpose of providing a thorough understandingof various concepts. However, it will be apparent to those skilled inthe art that these concepts may be practiced without these specificdetails. In some instances, well known structures and components areshown in block diagram form in order to avoid obscuring such concepts.

Several aspects of telecommunication systems will now be presented withreference to various apparatus and methods. These apparatus and methodswill be described in the following detailed description and illustratedin the accompanying drawings by various blocks, components, circuits,processes, algorithms, etc. (collectively referred to as “elements”).These elements may be implemented using electronic hardware, computersoftware, or any combination thereof. Whether such elements areimplemented as hardware or software depends upon the particularapplication and design constraints imposed on the overall system.

By way of example, an element, or any portion of an element, or anycombination of elements may be implemented as a “processing system” thatincludes one or more processors. Examples of processors includemicroprocessors, microcontrollers, graphics processing units (GPUs),central processing units (CPUs), application processors, digital signalprocessors (DSPs), reduced instruction set computing (RISC) processors,systems on a chip (SoC), baseband processors, field programmable gatearrays (FPGAs), programmable logic devices (PLDs), state machines, gatedlogic, discrete hardware circuits, and other suitable hardwareconfigured to perform the various functionality described throughoutthis disclosure. One or more processors in the processing system mayexecute software. Software shall be construed broadly to meaninstructions, instruction sets, code, code segments, program code,programs, subprograms, software components, applications, softwareapplications, software packages, routines, subroutines, objects,executables, threads of execution, procedures, functions, etc., whetherreferred to as software, firmware, middleware, microcode, hardwaredescription language, or otherwise.

Accordingly, in one or more example embodiments, the functions describedmay be implemented in hardware, software, or any combination thereof. Ifimplemented in software, the functions may be stored on or encoded asone or more instructions or code on a computer-readable medium.Computer-readable media includes computer storage media. Storage mediamay be any available media that may be accessed by a computer. By way ofexample, and not limitation, such computer-readable media may comprise arandom-access memory (RAM), a read-only memory (ROM), an electricallyerasable programmable ROM (EEPROM), optical disk storage, magnetic diskstorage, other magnetic storage devices, combinations of theaforementioned types of computer-readable media, or any other mediumthat may be used to store computer executable code in the form ofinstructions or data structures that may be accessed by a computer.

In some aspects, a UE may be configured by the BS with a list of Mcandidate TCI states at least for the purpose of QCL indication. Thenumber M may be 16, 32, 64, 128, 256, 512 or other numbers. Each TCIstate may include at least one reference signal (RS) set for one or moreQCL types. The at least one reference signal may include asynchronization signal block, channel state information referencesignals (CSI-RS), and/or tracking reference signals (TRS). The at leastone reference signal may be aperiodic, periodic, or semi-persistent.

In certain aspects, the MAC CE may be used to select a number of L TCIstates out of the list of M candidate TCI states for physical downlinkshared channel (PDSCH) QCL indication. The number L may be 2, 4, 8, 16,32, or other numbers. The bits in the downlink control information (DCI)may dynamically indicate the TCI state for the PDSCH transmission viathe mapping to the codepoints. A codepoint may be a value of the TCIfield in the downlink DCI. In an aspect of the present disclosure, a BSmay transmit a MAC CE including indications of selected and/or activatedTCI states among available TCI states. The MAC CE may excludedeactivated TCI states among the available TCI states. In other words,the BS may transmit a MAC CE including activated TCI states only withthe deactivated TCI states.

FIG. 1 is a diagram illustrating an example of a wireless communicationssystem and an access network 100. The wireless communications system(also referred to as a wireless wide area network (WWAN)) includes atleast one BS 105, UEs 110, an Evolved Packet Core (EPC) 160, and a 5GCore (5GC) 190. The BS 105 may include macro cells (high power cellularbase station) and/or small cells (low power cellular base station). Themacro cells include base stations. The small cells include femtocells,picocells, and microcells.

A BS 105 configured for 4G LTE (collectively referred to as EvolvedUniversal Mobile Telecommunications System (UMTS) Terrestrial RadioAccess Network (E-UTRAN)) may interface with the EPC 160 throughbackhaul links interfaces 132 (e.g., 51, X2, Internet Protocol (IP), orflex interfaces). A BS 105 configured for 5G NR (collectively referredto as Next Generation RAN (NG-RAN)) may interface with 5GC 190 throughbackhaul links interfaces 134 (e.g., S1, X2, Internet Protocol (IP), orflex interface). In addition to other functions, the BS 105 may performone or more of the following functions: transfer of user data, radiochannel ciphering and deciphering, integrity protection, headercompression, mobility control functions (e.g., handover, dualconnectivity), inter-cell interference coordination, connection setupand release, load balancing, distribution for non-access stratum (NAS)messages, NAS node selection, synchronization, radio access network(RAN) sharing, multimedia broadcast multicast service (MBMS), subscriberand equipment trace, RAN information management (RIM), paging,positioning, and delivery of warning messages. The BS 105 maycommunicate directly or indirectly (e.g., through the EPC 160 or 5GC190) with each other over the backhaul links interfaces 132, 134. Thebackhaul links 132, 134 may be wired or wireless.

The BS 105 may wirelessly communicate with the UEs 110. Each of the BS105 may provide communication coverage for a respective geographiccoverage area 130. There may be overlapping geographic coverage areas130. For example, the small cell 105′ may have a coverage area 130′ thatoverlaps the coverage area 130 of one or more macro BS 105. A networkthat includes both small cell and macro cells may be known as aheterogeneous network. A heterogeneous network may also include HomeEvolved Node Bs (eNBs) (HeNBs), which may provide service to arestricted group known as a closed subscriber group (CSG). Thecommunication links 120 between the BS 105 and the UEs 110 may includeuplink (UL) (also referred to as reverse link) transmissions from a UE110 to a BS 105 and/or downlink (DL) (also referred to as forward link)transmissions from a BS 105 to a UE 110. The communication links 120 mayuse multiple-input and multiple-output (MIMO) antenna technology,including spatial multiplexing, beamforming, and/or transmit diversity.The communication links may be through one or more carriers. The BS105/UEs 110 may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400,etc. MHz) bandwidth per carrier allocated in a carrier aggregation of upto a total of Y_(x) MHz (x component carriers) used for transmission ineach direction. The carriers may or may not be adjacent to each other.Allocation of carriers may be asymmetric with respect to DL and UL(e.g., more or less carriers may be allocated for DL than for UL). Thecomponent carriers may include a primary component carrier and one ormore secondary component carriers. A primary component carrier may bereferred to as a primary cell (PCell) and a secondary component carriermay be referred to as a secondary cell (SCell).

Certain UEs 110 may communicate with each other using device-to-device(D2D) communication link 158. The D2D communication link 158 may use theDL/UL WWAN spectrum. The D2D communication link 158 may use one or moresidelink channels, such as a physical sidelink broadcast channel(PSBCH), a physical sidelink discovery channel (PSDCH), a physicalsidelink shared channel (PSSCH), and a physical sidelink control channel(PSCCH). D2D communication may be through a variety of wireless D2Dcommunications systems, such as for example, FlashLinQ, WiMedia,Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

The wireless communications system may further include a Wi-Fi accesspoint (AP) 150 in communication with Wi-Fi stations (STAs) 152 viacommunication links 154 in a 5 GHz unlicensed frequency spectrum. Whencommunicating in an unlicensed frequency spectrum, the STAs 152/AP 150may perform a clear channel assessment (CCA) prior to communicating inorder to determine whether the channel is available.

The small cell 105′ may operate in a licensed and/or an unlicensedfrequency spectrum. When operating in an unlicensed frequency spectrum,the small cell 105′ may employ NR and use the same 5 GHz unlicensedfrequency spectrum as used by the Wi-Fi AP 150. The small cell 105′,employing NR in an unlicensed frequency spectrum, may boost coverage toand/or increase capacity of the access network.

A BS 105, whether a small cell 105′ or a large cell (e.g., macro basestation), may include an eNB, gNodeB (gNB), or other type of basestation. Some base stations, such as gNB 180 may operate in atraditional sub 6 GHz spectrum, in millimeter wave (mmW) frequencies,and/or near mmW frequencies in communication with the UE 110. When thegNB 180 operates in mmW or near mmW frequencies, the gNB 180 may bereferred to as an mmW base station. Extremely high frequency (EHF) ispart of the radio frequency (RF) in the electromagnetic spectrum. EHFhas a range of 30 GHz to 300 GHz and a wavelength between 1 millimeterand 10 millimeters. Radio waves in the band may be referred to as amillimeter wave. Near mmW may extend down to a frequency of 3 GHz with awavelength of 100 millimeters. The super high frequency (SHF) bandextends between 3 GHz and 30 GHz, also referred to as centimeter wave.

Communications using the mmW/near mmW radio frequency band has extremelyhigh path loss and a short range. The mmW base station 180 may utilizebeamforming 182 with the UE 110 to compensate for the path loss andshort range.

The EPC 160 may include a Mobility Management Entity (MME) 162, otherMMES 164, a Serving Gateway 166, a Multimedia Broadcast MulticastService (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC)170, and a Packet Data Network (PDN) Gateway 172. The MME 162 may be incommunication with a Home Subscriber Server (HSS) 174. The MME 162 isthe control node that processes the signaling between the UEs 110 andthe EPC 160. Generally, the MME 162 provides bearer and connectionmanagement. All user Internet protocol (IP) packets are transferredthrough the Serving Gateway 166, which itself is connected to the PDNGateway 172. The PDN Gateway 172 provides UE IP address allocation aswell as other functions. The PDN Gateway 172 and the BM-SC 170 areconnected to the IP Services 176. The IP Services 176 may include theInternet, an intranet, an IP Multimedia Subsystem (IMS), a PS StreamingService, and/or other IP services. The BM-SC 170 may provide functionsfor MBMS user service provisioning and delivery. The BM-SC 170 may serveas an entry point for content provider MBMS transmission, may be used toauthorize and initiate MBMS Bearer Services within a public land mobilenetwork (PLMN), and may be used to schedule MBMS transmissions. The MBMSGateway 168 may be used to distribute MBMS traffic to the BS 105belonging to a Multicast Broadcast Single Frequency Network (MBSFN) areabroadcasting a particular service, and may be responsible for sessionmanagement (start/stop) and for collecting eMBMS related charginginformation.

The 5GC 190 may include a Access and Mobility Management Function (AMF)192, other AMFs 193, a Session Management Function (SMF) 194, and a UserPlane Function (UPF) 195. The AMF 192 may be in communication with aUnified Data Management (UDM) 196. The AMF 192 is the control node thatprocesses the signaling between the UEs 110 and the 5GC 190. Generally,the AMF 192 provides QoS flow and session management. All user Internetprotocol (IP) packets are transferred through the UPF 195. The UPF 195provides UE IP address allocation as well as other functions. The UPF195 is connected to the IP Services 197. The IP Services 197 may includethe Internet, an intranet, an IP Multimedia Subsystem (IMS), a PSStreaming Service, and/or other IP services.

The BS 105 may also be referred to as a gNB, Node B, evolved Node B(eNB), an access point, a base transceiver station, a radio basestation, an access point, an access node, a radio transceiver, a NodeB,eNodeB (eNB), gNB, Home NodeB, a Home eNodeB, a relay, a transceiverfunction, a basic service set (BSS), an extended service set (ESS), atransmit reception point (TRP), or some other suitable terminology. TheBS 105 provides an access point to the EPC 160 or 5GC 190 for a UE 110.Examples of UEs 110 include a cellular phone, a smart phone, a sessioninitiation protocol (SIP) phone, a laptop, a personal digital assistant(PDA), a satellite radio, a global positioning system, a multimediadevice, a video device, a digital audio player (e.g., MP3 player), acamera, a game console, a tablet, a smart device, a wearable device, avehicle, an electric meter, a gas pump, a large or small kitchenappliance, a healthcare device, an implant, a sensor/actuator, adisplay, or any other similar functioning device. Some of the UEs 110may be referred to as IoT devices (e.g., parking meter, gas pump,toaster, vehicles, heart monitor, etc.). The UE 110 may also be referredto as a station, a mobile station, a subscriber station, a mobile unit,a subscriber unit, a wireless unit, a remote unit, a mobile device, awireless device, a wireless communications device, a remote device, amobile subscriber station, an access terminal, a mobile terminal, awireless terminal, a remote terminal, a handset, a user agent, a mobileclient, a client, or some other suitable terminology.

Referring to FIG. 2, one example of an implementation of the UE 110 mayinclude a modem 220 having a communication component 222 and a TCI statecomponent 224. The communication component 222 and/or the modem 220 ofthe UE 110 may be configured to communicate with the BS 105 via acellular network, a Wi-Fi network, or other wireless and wired networks.The TCI state component 224 may configure antennas 265 or antenna portsof the UE 110 based on TCI state information associated with acodepoint. The modem 220 may receive and transmit data packets.

In some implementations, the UE 110 may include a variety of components,some of which have already been described above, but includingcomponents such as one or more processors 212 and memory 216 andtransceiver 202 in communication via one or more buses 244, which mayoperate in conjunction with the modem 220, the communication component222 and/or the TCI state component 224 to enable one or more of thefunctions described herein related to communicating with the BS 105.Further, the one or more processors 212, modem 220, memory 216,transceiver 202, RF front end 288 and one or more antennas 265, may beconfigured to support voice and/or data messages (simultaneously ornon-simultaneously) in one or more radio access technologies. The one ormore antennas 265 may include one or more antennas, antenna elementsand/or antenna arrays.

In an aspect, the one or more processors 212 may include the modem 220that uses one or more modem processors. The various functions related tothe communication component 222 and/or the TCI state component 224 maybe included in the modem 220 and/or processors 212 and, in an aspect,may be executed by a single processor, while in other aspects, differentones of the functions may be executed by a combination of two or moredifferent processors. For example, in an aspect, the one or moreprocessors 212 may include any one or any combination of a modemprocessor, or a baseband processor, or a digital signal processor, or atransmit processor, or a receiving device processor, or a transceiverprocessor associated with transceiver 202. Additionally, the modem 220may configure the UE 110 along with the TCI state component 224 and theprocessors 212. In other aspects, some of the features of the one ormore processors 212 and/or the modem 220 associated with thecommunication component 222 may be performed by transceiver 202.

Also, memory 216 may be configured to store data used herein and/orlocal versions of applications 275 or the communication component 222and/or one or more subcomponents of the communication component 222being executed by at least one processor 212. Memory 216 may include anytype of computer-readable medium usable by a computer or at least oneprocessor 212, such as random access memory (RAM), read only memory(ROM), tapes, magnetic discs, optical discs, volatile memory,non-volatile memory, and any combination thereof. In an aspect, forexample, memory 216 may be a non-transitory computer-readable storagemedium that stores one or more computer-executable codes defining thecommunication component 222 and/or one or more of its subcomponents,and/or data associated therewith, when UE 110 is operating at least oneprocessor 212 to execute the communication component 222 and/or the TCIstate component 224 and/or one or more of their subcomponents.

Transceiver 202 may include at least one receiver 206 and at least onetransmitter 208. Receiving device 206 may include hardware, firmware,and/or software code executable by a processor for receiving data, thecode comprising instructions and being stored in a memory (e.g.,computer-readable medium). Receiving device 206 may be, for example, aRF receiving device. In an aspect, receiver 206 may receive signalstransmitted by at least one BS 105. Transmitter 208 may includehardware, firmware, and/or software code executable by a processor fortransmitting data, the code comprising instructions and being stored ina memory (e.g., computer-readable medium). A suitable example oftransmitter 208 may including, but is not limited to, an RF transmitter.

Moreover, in an aspect, UE 110 may include RF front end 288, which mayoperate in communication with one or more antennas 265 and transceiver202 for receiving and transmitting radio transmissions, for example,wireless communications transmitted by at least one BS 105 or wirelesstransmissions transmitted by UE 110. RF front end 288 may be coupledwith one or more antennas 265 and may include one or more low-noiseamplifiers (LNAs) 290, one or more switches 292, one or more poweramplifiers (PAs) 298, and one or more filters 296 for transmitting andreceiving RF signals.

In an aspect, LNA 290 may amplify a received signal at a desired outputlevel. In an aspect, each LNA 290 may have a specified minimum andmaximum gain values. In an aspect, RF front end 288 may use one or moreswitches 292 to select a particular LNA 290 and the specified gain valuebased on a desired gain value for a particular application.

Further, for example, one or more PA(s) 298 may be used by RF front end288 to amplify a signal for an RF output at a desired output powerlevel. In an aspect, each PA 298 may have specified minimum and maximumgain values. In an aspect, RF front end 288 may use one or more switches292 to select a particular PA 298 and the specified gain value based ona desired gain value for a particular application.

Also, for example, one or more filters 296 may be used by RF front end288 to filter a received signal to obtain an input RF signal. Similarly,in an aspect, for example, a respective filter 296 may be used to filteran output from a respective PA 298 to produce an output signal fortransmission. In an aspect, each filter 296 may be coupled with aspecific LNA 290 and/or PA 298. In an aspect, RF front end 288 may useone or more switches 292 to select a transmit or receive path using aspecified filter 296, LNA 290, and/or PA 298, based on a configurationas specified by transceiver 202 and/or processor 212.

As such, transceiver 202 may be configured to transmit and receivewireless signals through one or more antennas 265 via RF front end 288.In an aspect, transceiver may be tuned to operate at specifiedfrequencies such that UE 110 may communicate with, for example, one ormore BS 105 or one or more cells associated with one or more BS 105. Inan aspect, for example, the modem 220 may configure transceiver 202 tooperate at a specified frequency and power level based on the UEconfiguration of the UE 110 and the communication protocol used by themodem 220.

In an aspect, the modem 220 may be a multiband-multimode modem, whichmay process digital data and communicate with transceiver 202 such thatthe digital data is sent and received using transceiver 202. In anaspect, the modem 220 may be multiband and be configured to supportmultiple frequency bands for a specific communications protocol. In anaspect, the modem 220 may be multimode and be configured to supportmultiple operating networks and communications protocols. In an aspect,the modem 220 may control one or more components of UE 110 (e.g., RFfront end 288, transceiver 202) to enable transmission and/or receptionof signals from the network based on a specified modem configuration. Inan aspect, the modem configuration may be based on the mode of the modemand the frequency band in use. In another aspect, the modemconfiguration may be based on UE configuration information associatedwith UE 110 as provided by the network.

Referring to FIG. 3, one example of an implementation of the BS 105 mayinclude a modem 320 with a communication component 322, a beamindication component 324, and a MAC CE component 326. The communicationcomponent 322 and/or the modem 320 the BS 105 may be configured tocommunicate with the UE 110 via a cellular network, a Wi-Fi network, orother wireless and wired networks. The beam indication component 324 maydetermine, select, and/or activate TCI states associated with beams. TheMAC CE component 326 may generate a MAC CE. The modem 320 may receiveand transmit data packets.

In some implementations, the BS 105 may include a variety of components,some of which have already been described above, but includingcomponents such as one or more processors 312 and memory 316 andtransceiver 302 in communication via one or more buses 344, which mayoperate in conjunction with the modem 320 and the communicationcomponent 322, the beam indication component 324, and/or the MAC CEcomponent 326 to enable one or more of the functions described hereinrelated to communicating with the UE 110. Further, the one or moreprocessors 312, modem 320, memory 316, transceiver 302, RF front end 388and one or more antennas 365, may be configured to support voice and/ordata calls (simultaneously or non-simultaneously) in one or more radioaccess technologies.

In an aspect, the one or more processors 312 may include the modem 320that uses one or more modem processors. The various functions related tothe communication component 322, the beam indication component 324,and/or the MAC CE component 326 may be included in the modem 320 and/orprocessors 312 and, in an aspect, may be executed by a single processor,while in other aspects, different ones of the functions may be executedby a combination of two or more different processors. For example, in anaspect, the one or more processors 312 may include any one or anycombination of a modem processor, or a baseband processor, or a digitalsignal processor, or a transmit processor, or a receiving deviceprocessor, or a transceiver processor associated with transceiver 302.Additionally, the modem 320 may configure the BS 105 and processors 312.In other aspects, some of the features of the one or more processors 312and/or the modem 320 associated with the communication component 322 maybe performed by transceiver 302.

Also, memory 316 may be configured to store data used herein and/orlocal versions of applications 375 or the communication component 160and/or one or more subcomponents of the communication component 322being executed by at least one processor 312. Memory 316 may include anytype of computer-readable medium usable by a computer or at least oneprocessor 312, such as random access memory (RAM), read only memory(ROM), tapes, magnetic discs, optical discs, volatile memory,non-volatile memory, and any combination thereof. In an aspect, forexample, memory 316 may be a non-transitory computer-readable storagemedium that stores one or more computer-executable codes defining thecommunication component 322 and/or one or more of its subcomponents,and/or data associated therewith, when the BS 105 is operating at leastone processor 312 to execute the communication component 322 and/or oneor more of the subcomponents.

Transceiver 302 may include at least one receiver 306 and at least onetransmitter 308. The at least one receiver 306 may include hardware,firmware, and/or software code executable by a processor for receivingdata, the code comprising instructions and being stored in a memory(e.g., computer-readable medium). Receiving device 306 may be, forexample, a RF receiving device. In an aspect, receiver 306 may receivesignals transmitted by the UE 110. Transmitter 308 may include hardware,firmware, and/or software code executable by a processor fortransmitting data, the code comprising instructions and being stored ina memory (e.g., computer-readable medium). A suitable example oftransmitter 308 may including, but is not limited to, an RF transmitter.

Moreover, in an aspect, the BS 105 may include RF front end 388, whichmay operate in communication with one or more antennas 365 andtransceiver 302 for receiving and transmitting radio transmissions, forexample, wireless communications transmitted by other BS 105 or wirelesstransmissions transmitted by UE 110. RF front end 388 may be coupledwith one or more antennas 365 and may include one or more low-noiseamplifiers (LNAs) 390, one or more switches 392, one or more poweramplifiers (PAs) 398, and one or more filters 396 for transmitting andreceiving RF signals.

In an aspect, LNA 390 may amplify a received signal at a desired outputlevel. In an aspect, each LNA 390 may have a specified minimum andmaximum gain values. In an aspect, RF front end 388 may use one or moreswitches 392 to select a particular LNA 390 and the specified gain valuebased on a desired gain value for a particular application.

Further, for example, one or more PA(s) 398 may be used by RF front end388 to amplify a signal for an RF output at a desired output powerlevel. In an aspect, each PA 398 may have specified minimum and maximumgain values. In an aspect, RF front end 388 may use one or more switches392 to select a particular PA 398 and the specified gain value based ona desired gain value for a particular application.

Also, for example, one or more filters 396 may be used by RF front end388 to filter a received signal to obtain an input RF signal. Similarly,in an aspect, for example, a respective filter 396 may be used to filteran output from a respective PA 398 to produce an output signal fortransmission. In an aspect, each filter 396 may be coupled with aspecific LNA 390 and/or PA 398. In an aspect, RF front end 388 may useone or more switches 392 to select a transmit or receive path using aspecified filter 396, LNA 390, and/or PA 398, based on a configurationas specified by transceiver 302 and/or processor 312.

As such, transceiver 302 may be configured to transmit and receivewireless signals through one or more antennas 365 via RF front end 388.In an aspect, transceiver may be tuned to operate at specifiedfrequencies such that BS 105 may communicate with, for example, the UE110 or one or more cells associated with one or more BS 105. In anaspect, for example, the modem 320 may configure transceiver 302 tooperate at a specified frequency and power level based on the basestation configuration of the BS 105 and the communication protocol usedby the modem 320.

In an aspect, the modem 320 may be a multiband-multimode modem, whichmay process digital data and communicate with transceiver 302 such thatthe digital data is sent and received using transceiver 302. In anaspect, the modem 320 may be multiband and be configured to supportmultiple frequency bands for a specific communications protocol. In anaspect, the modem 320 may be multimode and be configured to supportmultiple operating networks and communications protocols. In an aspect,the modem 320 may control one or more components of the BS 105 (e.g., RFfront end 388, transceiver 302) to enable transmission and/or receptionof signals from the network based on a specified modem configuration. Inan aspect, the modem configuration may be based on the mode of the modemand the frequency band in use. In another aspect, the modemconfiguration may be based on base station configuration associated withthe BS 105.

Referring now to FIG. 4, the core network 115 may be implemented as oneor more core network devices, such as an example of a computer system400. The computer system 400 may be a hardware system, a virtual system,a cloud-based system, or a combination thereof. The computer system 400includes one or more processors, such as the processor 404. Theprocessor 404 is communicatively coupled with a communicationinfrastructure 406 (e.g., a communications bus, cross-over bar, ornetwork).

The computer system 400 may include a display interface 402 thatforwards graphics, text, and other data from the communicationinfrastructure 406 (or from a frame buffer not shown) for display on adisplay unit 430. Computer system 400 also includes a main memory 408,preferably random access memory (RAM), and may also include a secondarymemory 410. The secondary memory 410 may include, for example, a harddisk drive 412, and/or a removable storage drive 414, representing afloppy disk drive, magnetic tape drive, optical disk drive, universalserial bus (USB) flash drive, etc. The removable storage drive 414 readsfrom and/or writes to a first removable storage unit 418 in a well-knownmanner. The first removable storage unit 418 represents a floppy disk,magnetic tape, optical disk, USB flash drive etc., which is read by andwritten to removable storage drive 414. As will be appreciated, thefirst removable storage unit 418 includes a computer usable storagemedium having stored therein computer software and/or data.

Alternative aspects of the present disclosure may include secondarymemory 410 and may include other similar devices for allowing computerprograms or other instructions to be loaded into computer system 400.Such devices may include, for example, a second removable storage unit422 and an interface 420. Examples of such may include a programcartridge and cartridge interface (such as that found in video gamedevices), a removable memory chip (such as an erasable programmable readonly memory (EPROM), or programmable read only memory (PROM)) andassociated socket, and other removable storage units (not shown) andinterfaces 420, which allow software and data to be transferred from thesecond removable storage unit 422 to computer system 400.

Computer system 400 may also include a communications interface 424.

Communications interface 424 allows software and data to be transferredbetween computer system 400 and external devices. Examples ofcommunications interface 424 may include a modem, a network interface(such as an Ethernet card), a communications port, a Personal ComputerMemory Card International Association (PCMCIA) slot and card, etc.Software and data transferred via communications interface 424 are inthe form of signals 428, which may be electronic, electromagnetic,optical or other signals capable of being received by communicationsinterface 424. These signals 428 are provided to communicationsinterface 424 via a communications path (e.g., channel) 426. This path426 carries signals 428 and may be implemented using one or more of awire or cable, fiber optics, telephone line, cellular link, RF linkand/or other communications channels. In this document, the terms“computer program medium” and “computer usable medium” are used to refergenerally to media such as the first removable storage drive 418, a harddisk installed in hard disk drive 412, and signals 428. These computerprogram products provide software to the computer system 400. Aspects ofthe present disclosure are directed to such computer program products.

Computer programs (also referred to as computer control logic) arestored in main memory 408 and/or secondary memory 410. Computer programsmay also be received via communications interface 424. Such computerprograms, when executed, enable the computer system 400 to perform thefeatures in accordance with aspects of the present disclosure, asdiscussed herein. In particular, the computer programs, when executed,enable the processor 404 to perform the features in accordance withaspects of the present disclosure. Accordingly, such computer programsrepresent controllers of the computer system 400.

In an aspect of the present disclosure where the method is implementedusing software, the software may be stored in a computer program productand loaded into computer system 400 using removable storage drive 414,hard drive 412, or communications interface 420. The control logic(software), when executed by the processor 404, causes the processor 404to perform the functions described herein. In another aspect of thepresent disclosure, the system is implemented primarily in hardwareusing, for example, hardware components, such as application specificintegrated circuits (ASICs). Implementation of the hardware statemachine so as to perform the functions described herein will be apparentto persons skilled in the relevant art(s).

Turning now to FIG. 5, a service based architecture (SBA) 500 of thewireless communication network 100 may include a number ofinterconnected network functions (NFs). The SBA 500 may include anetwork slice selection function (NSSF) 502 that may support theselection of the network slice instances to serve the one or more UEs110, and determines the allowed network slice selection assistanceinformation and the access and mobility management function (AMF) set tobe used to serve the one or more UEs 110. The NSSF 502 may communicatewith other functions within the SBA 500 via a Nnssf 502I interface. TheSBA 500 may include a network exposure function (NEF) 504 that maysupport exposure of capabilities and events, secure provision ofinformation from external application to various wireless communicationnetworks, and translation of internal and external information. The NEF504 may communicate with other functions within the SBA 500 via a Nnef504I interface.

Still referring to FIG. 5, the SBA 500 may include a network functionrepository function (NRF) 506 that may support service discoveryfunctions and may maintain NF profiles and available NF instances. TheNRF 506 may communicate with other functions within the SBA 500 via aNnrf 506I interface. The SBA 500 may include a policy control function(PCF) 508 that may support unified policy framework, provide policyrules to control plane (CP) functions, access subscription informationfor policy decisions in unified data repository (UDP). The PCF 508 maycommunicate with other functions within the SBA 500 via a Npcf 508Iinterface.

Still referring to FIG. 5, the SBA 500 may include the UDM 196 that maysupport the generations of authentication and key agreement (AKA)credentials, user identification handling, access authorization, andsubscription management. The UDM 196 may communicate with otherfunctions within the SBA 500 via a Nudm 196I interface. The SBA 500 mayinclude an application function (AF) 512 that may support applicationinfluence on traffic routing and interaction with policy framework forpolicy control. The AF 512 may communicate with other functions withinthe SBA 500 via a Naf 512I interface.

Still referring to FIG. 5, the SBA 500 may include an authenticationserver function (AUSF) 514 that may serve as an authentication server.The AUSF 514 may communicate with other functions within the SBA 500 viaa Nausf 514I interface. The SBA 500 may include the AMF 192 that maysupport the termination of non-access-stratum (NAS) signaling, NASciphering and integrity protection, registration management, connectionmanagement, mobility management, access authentication andauthorization, security context management. The AMF 192 may communicatewith other functions within the SBA 500 via a Namf 192I interface. TheAMF 192 may also communicate with the UE 110 via the N1 interface and aRAN 106 with the N2 interface.

The RAN 106 may be a network entity residing between the core network115 and the UE 110. The RAN 106 may be implemented, for example, by theBS 105. The RAN 106 may relay data between the core network 115 and theUE 110.

Still referring to FIG. 5, the SBA 500 may include the SMF 194 that maysupport session management (session establishment, modification,release), UE internet protocol (IP) address allocation & management,dynamic host configuration protocol functions, termination of NASsignaling related to session management, downlink data notification,traffic steering configuration for UPF for proper traffic routing. TheSMF 194 may communicate with other functions within the SBA 500 via aNsmf 194I interface. The SBA 500 may include the UPF 195 that maysupport packet routing & forwarding, packet inspection, quality ofservice (QoS) handling, act as the external PDU session interface to thedata network (DN) 522, and is an anchor point for both intra radioaccess technology (RAT) and inter-RAT mobility. The UPF 195 maycommunicate with the SMF 194 via a N4 interface, the DN 522 via the N5interface, and the RAN 106 via the N3 interface.

In some implementations, the RAN 106 and the UE 110 may communicate viathe Uu (wireless radio or “air”) interface.

Turning now to FIG. 6, an example of a MAC header 600 may include areserved bit 602, a serving cell identifier (ID) 604, a bandwidth part(BWP) ID 606 and one or more TCI fields 608. In some implementations,the one or more TCI fields 608 may indicate the activation/deactivationstatuses of one or more TCI states with TCI state IDs. In one example,one of the one or more TCI fields 608 may include a value of “0” toindicate the deactivation of the associated TCI state, or a value of “1”to indicate the activation of the associated TCI state. The MAC header600 may provide indications of both activated and deactivated TCI fieldsas described below.

For example, TCI fields 608 T₀, T₄, and T₁₁ may each include a value of“1” to indicate that the TCI states with TCI state IDs of 0, 4, and 11are activated. The TCI states with TCI state IDs of 0, 4, and 11 may bemapped to one or more codepoints of the DCI TCI field. The codepoint(s)to which the TCI State is/are mapped may be determined by the ordinalposition among the TCI states with a “1” in the one or more TCI fields608. Therefore, the first TCI state associated with a value of “1” inthe TCI field 608 may be mapped to the codepoint value 0, the second TCIstate associated with a value of “1” in the TCI field 608 may be mappedto the codepoint value 1, the third TCI state associated with a value of“1” in the TCI field 608 may be mapped to the codepoint value 2, etc.The BS 105 may support 2, 4, 8, 16, 32, or other numbers of activatedTCI states.

In another example, TCI fields 608 T₂, T₇, and T₁₄ may each include avalue of “0” to indicate that the TCI states with TCI state IDs of 2, 7,and 14 are deactivated. In the deactivated case, the TCI states with TCIstate IDs of 2, 7, and 14 are not mapped to any codepoint of the DCI TCIfield.

In certain networks that implement the single DCI based multi-TRP design(where a single NR-PDCCH schedules one or more NR-PDSCH), differentscheduling schemes may be used. For example, different TRPs may transmitdifferent spatial layers in overlapping resource blocks (RBs)corresponding to space division multiplexing (SDM) scheme, or differentTRPs may transmit in different set of RBs corresponding to frequencydivision multiplexing (FDM) scheme, or different TRPs may transmit indifferent OFDM symbols or slots corresponding to time divisionmultiplexing (TDM) scheme. When a single DCI is used to schedule amulti-TCI transmission, the TCI field in the DCI may indicate two TCIstates for the purpose of receiving the scheduled PDSCH. For QCLindication of demodulation reference signals (DMRS) for PDSCH via DCIsignaling, the TCI field in the DCI may point to two TCI states and/ortwo QCL relationships referring to two RS sets. When two TCI states areactivated within a TCI codepoint, and the DCI indicates that TCIcodepoint for a scheduled PDSCH, each TCI state may correspond to oneset of layers (out of two sets of layers in SDM scheme), or one set ofRBs (out of two sets of RBs in FDM scheme) or one set of OFDMsymbols/slots (out of two sets of OFDM symbols/slots in TDM scheme).

Turning now to FIG. 7, in certain implementations, another example of aMAC CE 700 may include a reserved bit 702, a serving cell ID 704, a BWPID 706, one or more reserved bits 707, and TCI fields 708. The TCIfields 708 may include TCI state IDs mapped to the codepoints of the DCITCI field. The TCI state IDs in the TCI fields 708 may indicate theactivation of corresponding TCI states. TCI state IDs that are notlisted in the TCI fields 708 may correspond to TCI states that aredeactivated. In other words, the MAC CE 700 may include activated TCIstates and exclude deactivated TCI states.

In one aspect, each of the codepoints of the DCI TCI field maycorrespond to one TCI state. The BS 105 may include L codepoints, whereL may be 1, 2, 4, 8, 16, 32, or other numbers. In an example, the BS 105may activate L=8 codepoints and M=128 possible TCI states. Therefore,the TCI fields 708 in the MAC CE 700 may include TCI state IDs of eightTCI states each associated with a different codepoint. For example, theTCI field 708-1 may include a first TCI state ID (associated with afirst TCI state) for a first codepoint, the TCI field 708-2 may includea second TCI state ID (associated with a second TCI state) for a secondcodepoint, the TCI field 708-3 may include a third TCI state ID(associated with a third TCI state) for a third codepoint, the TCI field708-4 may include a fourth TCI state ID (associated with a fourth TCIstate) for a fourth codepoint, the TCI field 708-5 may include a fifthTCI state ID (associated with a fifth TCI state) for a fifth codepoint,the TCI field 708-6 may include a sixth TCI state ID (associated with asixth TCI state) for a sixth codepoint, the TCI field 708-7 may includea seventh TCI state ID (associated with a seventh TCI state) for aseventh codepoint, and the TCI field 708-8 may include an eighth TCIstate ID (associated with an eighth TCI state) for an eighth codepoint.

In some examples, the MAC CE 700 may be 8 bits wide. The TCI fields 708may be 7 bits wide, sufficient to represent 128 possible TCI states,plus a 1-bit reserve bit 707.

Turning now to FIG. 8, in certain examples, a non-limiting example of aMAC CE 800 according to aspects of the present disclosure may includeone or more reserved bits 802, a serving cell ID 804, a BWP ID 806,indicators 808, and TCI fields 810. The TCI fields 810 may include TCIstate IDs mapped to the codepoints of the DCI TCI field. The TCI stateIDs in the TCI fields 810 may indicate the activation of correspondingTCI states. TCI state IDs that are not listed in the TCI fields 810 maycorrespond to TCI states that are deactivated. In other words, the MACCE 800 may include activated TCI states and exclude deactivated TCIstates.

In certain aspect, each of the codepoints of the DCI TCI field maycorrespond to one or more TCI states. The BS 105 may include Lcodepoints, where L may be 1, 2, 4, 8, 16, 32, or other numbers. In oneexample, the BS 105 may include L=8 codepoints and M=128 possible TCIstates. The TCI fields 810 in the MAC CE 800 may include TCI state IDsof 16 TCI states associated with 8 different codepoints.

For example, the TCI field 810-1 may include a first TCI state ID(associated with a first TCI state) for a first codepoint, the TCI field810-2 may include a second TCI state ID (associated with a second TCIstate) for the first codepoint, the TCI field 810-3 may include a firstTCI state ID (associated with a first TCI state) for a second codepoint,the TCI field 810-4 may include a second TCI state ID (associated with asecond TCI state) for the second codepoint, the TCI field 810-5 mayinclude a first TCI state ID (associated with a first TCI state) for athird codepoint, the TCI field 810-6 may include a second TCI state ID(associated with a second TCI state) for the third codepoint, the TCIfield 810-7 may include a seventh TCI state ID (associated with aseventh TCI state) for a fourth codepoint, and the TCI field 810-8 mayinclude a first TCI state ID (associated with a second TCI state) forthe fourth codepoint.

In the same example, the TCI field 810-9 may include a first TCI stateID (associated with a first TCI state) for a fifth codepoint, the TCIfield 810-10 may include a second TCI state ID (associated with a secondTCI state) for the fifth codepoint, the TCI field 810-11 may include afirst TCI state ID (associated with a first TCI state) for a sixthcodepoint, the TCI field 810-12 may include a second TCI state ID(associated with a second TCI state) for the sixth codepoint, the TCIfield 810-13 may include a first TCI state ID (associated with a firstTCI state) for a seventh codepoint, the TCI field 810-14 may include asecond TCI state ID (associated with a second TCI state) for the seventhcodepoint, the TCI field 810-15 may include a first TCI state ID(associated with a first TCI state) for an eighth codepoint, and the TCIfield 810-16 may include a second TCI state ID (associated with a secondTCI state) for the eighth codepoint.

In an implementation, the second TCI state for each codepoint may beequal to the first TCI state for the same codepoint. The first pair ofthe TCI fields 810-1, 810-2 may associated with the first codepoint. Thesecond pair of the TCI fields 810-3, 810-4 may be associated with thesecond codepoint. Under this implementation, the MAC CE 800 may be fixedsize.

In other implementations, the second TCI state for each codepoint maynot be indicated, and the UE 110 may rely on values of the indicators808. For example, the indicator 808-1 may include a value of “0” toindicate that the first TCI state in the TCI field 810-1 is associatedwith the first codepoint, and the indicator 808-2 may include a value of“1” to indicate that the second TCI state in the TCI field 810-2 isassociated with the first codepoint. The indicator value of “0” mayindicate a beginning of the codepoint. Using this implementation, theMAC CE 800 may be variable.

In alternative implementations, the BS 105 may send 2 or more MAC CEs tothe UE 110 to represent the TCI states. A first MAC CE may include theTCI state ID of the first TCI states and the second MAC CE may includethe TCI state ID of the second TCI states. The first and/or second MACCE may utilize the reserved bits, such as the one or more reserved bit802, to indicate the first MAC CE or the second MAC CE.

For joint indication in the same MAC CE message, but instead ofseparately indicating the first and second TCI state for each codepoint,the indication of TCI state(s) may be based on the same set of bits. Thetotal possibilities for each codepoint may be calculated using thefollowing equation,

${\begin{pmatrix}M \\1\end{pmatrix} + \begin{pmatrix}M \\2\end{pmatrix}},$

to indicate 1 or 2 TCI states for a codepoint (e.g., E.g. if

$M = {\left. 128\rightarrow{\log \; 2\left( {\begin{pmatrix}M \\1\end{pmatrix} + \ \begin{pmatrix}M \\2\end{pmatrix}} \right)} \right. = {14}}$

bits or if

$M = {\left. 64\rightarrow{\log \; 2\left( {\begin{pmatrix}M \\1\end{pmatrix} + \ \begin{pmatrix}M \\2\end{pmatrix}} \right)} \right. = 12}$

bits.

A one-to-one mapping between the possibilities and the correspondingbits in the MAC CE may identify a) whether a codepoint corresponds toone TCI state or two TCI states and/or b) the ID of TCI state(s).

In alternative implementations, a codepoint in the DCI may be mapped tomore than two TCI states, such as three TCI states. The indicators 808may be used as delimiters to separate successive codepoints. Forexample, an indicator value of “1” means the last TCI state for acodepoint (e.g., 0,1 in the indicators 808 of two consecutive rows meansa codepoint corresponds to 2 TCI states; 0,0,1 in the indicators 808 ofthree consecutive rows means codepoint corresponds to 3 TCI states).

In certain aspects, the MAC CE 800 may be divided into two separate MACCEs. The first MAC CE may include the TCI fields with the TCI state IDsassociated with the first TCI states for the codepoints and the secondMAC CE may include the TCI fields with the TCI state IDs associated withthe second TCI states for the codepoints. For example, the first MAC CEmay include the TCI fields 810-1, 810-3, 810-5, 810-7, 810-9, 810-11,810-13, 810-15. The second MAC CE may include the TCI fields 810-2,810-4, 810-6, 810-8, 810-10, 810-12, 810-14, 810-16.

In other implementations, the MAC CE 800 may be divided into twoseparate MAC CEs. The first MAC CE may include the TCI fields with theTCI state IDs associated with the TCI states for a portion of thecodepoints and the second MAC CE may include the TCI fields with the TCIstate IDs associated with the TCI states for another portion of thecodepoints.

Turning now to FIG. 9, in some implementations, the BS 105 may utilizetwo or more MAC CEs to indicate the activation of TCI states and to mapthe TCI states to codepoints in the DCI. For example, an example of aMAC CE 900 may include indicators 908 and TCI fields 910. The TCI fields910 may include activated TCI states for codepoints.

In certain aspect, each of the codepoints of the DCI TCI fields maycorrespond to one or more TCI states. The BS 105 may include Lcodepoints, where L may be 1, 2, 4, 8, 16, 32, or other numbers. The BS105 may activate K TCI states, where K may be 1, 2, 4, 8, 16, 32, orother numbers. In one example, the BS 105 may include K=8 activated TCIstates, L=8 codepoints, and M=128 possible TCI states.

For example, the TCI field 910-1 may include a first TCI state (out of Kactivated TCI states) for a first codepoint, the TCI field 810-2 mayinclude a second TCI state (out of K activated TCI states) for the firstcodepoint, the TCI field 810-3 may include a first TCI state (out of Kactivated TCI states) for a second codepoint, the TCI field 810-4 mayinclude a second TCI state (out of K activated TCI states) for thesecond codepoint, the TCI field 810-5 may include a first TCI state (outof K activated TCI states) for a third codepoint, the TCI field 810-6may include a second TCI state (out of K activated TCI states) for thethird codepoint, the TCI field 810-7 may include a seventh TCI state(out of K activated TCI states) for a fourth codepoint, and the TCIfield 810-8 may include a first TCI state (out of K activated TCIstates) for the fourth codepoint.

In the same example, the TCI field 810-9 may include a first TCI state(out of K activated TCI states) for a fifth codepoint, the TCI field810-10 may include a second TCI state (out of K activated TCI states)for the fifth codepoint, the TCI field 810-11 may include a first TCIstate (out of K activated TCI states) for a sixth codepoint, the TCIfield 810-12 may include a second TCI state (out of K activated TCIstates) for the sixth codepoint, the TCI field 810-13 may include afirst TCI state (out of K activated TCI states) for a seventh codepoint,the TCI field 810-14 may include a second TCI state (out of K activatedTCI states) for the seventh codepoint, the TCI field 810-15 may includea first TCI state (out of K activated TCI states) for an eighthcodepoint, and the TCI field 810-16 may include a second TCI state (outof K activated TCI states) for the eighth codepoint.

In some aspects, the BS 105 may send another MAC CE to indicate themapping between TCI state IDs to the codepoints. For example, the BS 105may utilize one of the MAC CEs described above to map the TCI state IDsto the codepoints. The MAC CE may supplement the MAC CE 900 to indicateto the UE 110 the mapping between the TCI state IDs and the codepoints.

Referring to FIG. 10, an example of a method 1000 for configuringdownlink data channel may be performed by the UE 110 in the wirelesscommunication network 100.

At block 1002, the method 1000 may receive at least one MAC CE includinga set of activated TCI IDs associated with a first set of TCI states andexcluding a set of deactivated TCI IDs associated with a second set ofTCI state, wherein: the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the first set of TCIstates in DCI. For example, the communication component 222, the modem220, and/or the processor 212 of the UE 110 may receive the MAC CE 800from the BS 105. The one or more antennas 265 may receiveelectro-magnetic signals from one or more antennas 265 of the relay UE110. The RF front end 288 may filter, amplify, and/or extract electricalsignals carried by the electro-magnetic signals. The transceiver 202 orthe receiver 206 may digitize and convert the electrical signal into thedata, such as the data in the MAC CE 800, and send to the communicationcomponent 222. The MAC CE 800 may include activated TCI states andexclude deactivated TCI states. The TCI field 810-1 may include a firstTCI state ID (associated with a first TCI state) for a first codepointand the TCI field 810-2 may include a second TCI state ID (associatedwith a second TCI state) for the first codepoint.

In some implementations, the RF front end 288, the transceiver 202, thereceiver 206, the one or more antennas 265, the communication component222, the modem 220, and/or the processor 212 of the UE 110 may beconfigured to and/or may define means for receiving at least one MAC CEincluding a set of activated TCI IDs associated with a first set of TCIstates and excluding a set of deactivated TCI IDs associated with asecond set of TCI state, wherein: the set of activated TCI IDs areassigned to a plurality of codepoints which indicates values of thefirst set of TCI states in DCI.

At block 1004, the method 1000 may receive the DCI. For example, thecommunication component 222, the modem 220, and/or the processor 212 ofthe UE 110 may receive the DCI from the BS 105. The TCI field in the DCImay include 3 bits, representing 8 codepoints. The one or more antennas265 may receive electro-magnetic signals from one or more antennas 265of the UE 110. The RF front end 288 may filter, amplify, and/or extractelectrical signals carried by the electro-magnetic signals. Thetransceiver 202 or the receiver 206 may digitize and convert theelectrical signal into the data, such as the DCI, and send to thecommunication component 222.

In certain implementations, the RF front end 288, the transceiver 202,the receiver 206, the one or more antennas 265, the communicationcomponent 222, the modem 220, and/or the processor 212 of the UE 110 maybe configured to and/or may define means for receiving the DCI.

At block 1006, the method 1000 may receive downlink data channel basedon at least one or more TCI states of the first set of TCI statesassigned to a codepoint of a plurality of codepoints associated with theDCI. For example, the communication component 222, the modem 220, and/orthe processor 212 of the UE 110 may receive physical shared channel(PSCH), PDSCH, physical downlink control channel (PDCCH), or otherdownlink data channel from the BS 105. The one or more antennas 265 mayreceive electro-magnetic signals from one or more antennas 265 of the UE110. The RF front end 288 may filter, amplify, and/or extract electricalsignals carried by the electro-magnetic signals. The transceiver 202 orthe receiver 206 may digitize and convert the electrical signal into thedata, such as the PDSCH and/or PDCCH information, and send to thecommunication component 222. The UE 110 may receive the informationafter configuring the one or more antennas 265 (via the TCI statecomponent 224, the modem 220, and/or the processor 212) usinginformation from a second TCI state for the second codepoint.

In certain implementations, the RF front end 288, the transceiver 202,the receiver 206, the one or more antennas 265, the communicationcomponent 222, the modem 220, and/or the processor 212 of the UE 110 maybe configured to and/or may define means for receiving downlink datachannel based on at least one or more TCI states of the first set of TCIstates assigned to a codepoint of a plurality of codepoints associatedwith the DCI.

Referring to FIG. 11, an example of a method 1100 for transmitting MACCE may be performed by the BS 105 in the wireless communication network100.

At block 1102, the method 1100 may determine a set of activatedtransmission configuration indicator (TCI) states wherein: the set ofactivated TCI states is associated with a set of activated TCIidentifiers (IDs) which are assigned to a first codepoint of a pluralityof codepoints, and the plurality of codepoints indicate values of theset of activated TCI states in DCI. For example, the beam indicationcomponent 324 and/or the processors 312 may determine a set of activatedtransmission configuration indicator (TCI) states.

In certain implementations, the beam indication component 324 and/or theprocessors 312 of the BS 105 may be configured to and/or may definemeans for determining a set of activated transmission configurationindicator (TCI) states wherein: the set of activated TCI states isassociated with a set of activated TCI identifiers (IDs) which areassigned to a first codepoint of a plurality of codepoints, and theplurality of codepoints indicate values of the set of activated TCIstates in DCI.

At block 1104, the method 110 may generate at least one MAC CE includingthe set of activated TCI IDs and excluding a set of deactivated TCI IDsassociated with a set of deactivated TCI states, wherein at least one ofthe set of activated TCI states is assigned to a codepoint of aplurality of codepoints. For example, the MAC CE component 326 and/orthe processors 312 may generate at least one MAC CE including the set ofactivated TCI IDs and excluding a set of deactivated TCI IDs associatedwith a set of deactivated TCI states. In some implementations, a singleactivated TCI ID may be assigned to one codepoint. In otherimplementations, two or more activated TCI IDs may be assigned to onecodepoint. In certain implementations, there may be 8 codepoints, eachhave 1, 2, or more associated TCI IDs/states.

In certain implementations, the MAC CE component 326 and/or theprocessors 312 of the BS 105 may be configured to and/or may definemeans for generating at least one MAC CE including the set of activatedTCI IDs and excluding a set of deactivated TCI IDs associated with a setof deactivated TCI states, wherein at least one of the set of activatedTCI states is assigned to a codepoint of a plurality of codepoints.

At block 1106, the method 110 may transmit the at least one MAC CE. Forexample, the communication component 322 and/or the processors 312 maytransmit the at least one MAC CE.

In some implementations, the communication component 322 and/or theprocessors 312 may be configured to and/or may define means fortransmitting the at least one MAC CE.

At block 1108, the method 110 may transmit the DCI. For example, thecommunication component 322 and/or the processors 312 may transmit theDCI.

In some implementations, the communication component 322 and/or theprocessors 312 may be configured to and/or may define means fortransmitting the DCI.

In an aspect of the present disclosure, the UE may receive a first MACCE and a second MAC CE, wherein: the first MAC CE includes a first setof activated TCI IDs and excludes a set of deactivated TCI IDs, thesecond MAC CE includes a second set of activated TCI IDs and excludesthe set of deactivated TCI IDs, the first set of activated TCI IDs isassociated with a first set of TCI states, the second set of activatedTCI IDs is associated with a second set of TCI states, the set ofdeactivated TCI IDs is associated with a set of deactivated TCI states,and one or more TCI IDs of the first set of activated TCI IDs or thesecond set of activated TCI IDs correspond to a first codepoint of aplurality of codepoints, and receive downlink data channel based on atleast one or more TCI states of the first set of TCI states or thesecond set of TCI states associated with a second codepoint of aplurality of codepoints.

In another aspect of the present disclosure, the UE may receive a firstMAC CE, wherein: the first MAC CE includes a set of activated TCI IDsand excludes a set of deactivated TCI IDs, the first set of activatedTCI IDs is associated with a first set of TCI states, and the set ofdeactivated TCI IDs is associated with a set of deactivated TCI states,receive a second MAC CE, wherein: the second MAC CE includes a pluralityof codepoints, and first set of TCI states correspond to the pluralityof codepoints, and receive downlink data channel based on at least oneof the first set of TCI states associated with a codepoint of aplurality of codepoints.

Additional Implementations

Aspects of the present disclosure include methods including receiving atleast one MAC CE including a set of activated TCI IDs associated with afirst set of TCI states and excluding a set of deactivated TCI IDsassociated with a second set of TCI state, wherein: the set of activatedTCI IDs are assigned to a plurality of codepoints which indicates valuesof the first set of TCI states in DCI, receiving the DCI, and receivingdownlink data channel based on at least one or more TCI states of thefirst set of TCI states assigned to a codepoint of a plurality ofcodepoints associated with the DCI.

Any of the methods above, further comprising configuring one or moreantennas or antenna ports based on the at least one of the first set ofTCI states.

Any of the methods above, wherein the at least one MAC CE furthercomprises one or more indicators to indicate mappings between the set ofactivated TCI IDs and the plurality of codepoints.

Any of the methods above, wherein the one or more indicators indicatewhether each codepoint of the plurality of codepoints is mapped to oneTCI ID of the set of activated TCI IDs or two TCI IDs of the set ofactivated TCI IDs.

Any of the methods above, wherein the set of activated TCI IDs areordered to indicate mapping between the set of activated TCI IDs and theplurality of codepoints.

Any of the methods above, wherein a first activated TCI ID of the set ofactivated TCI IDs is assigned to the codepoint of the plurality ofcodepoints and a second activated TCI ID of the set of activated TCI IDsis assigned to a second codepoint of the plurality of codepoints.

Any of the methods above, wherein the plurality of codepoints areordered to indicate mappings between the set of activated TCI IDs andthe plurality of codepoints.

Any of the methods above, wherein a first indicator of the one or moreindicators indicates a first activated TCI ID of the set of activatedTCI IDs is associated with the code point of the plurality ofcodepoints, a second indicator of the one or more indicators indicates asecond activated TCI ID of the set of activated TCI IDs is associatedwith the code point of the plurality of codepoints, a third indicator ofthe one or more indicators indicates a third activated TCI ID of the setof activated TCI IDs is associated with a second code point of theplurality of codepoints, and a fourth indicator of the one or moreindicators indicates a fourth activated TCI ID of the set of activatedTCI IDs is associated with the second code point of the plurality ofcodepoints.

Other aspects of the present disclosure include a UE having a memory, atransceiver, and one or more processors operatively coupled with thememory and the transceiver, the one or more processors configured toperform the steps of receiving at least one MAC CE including a set ofactivated TCI IDs associated with a first set of TCI states andexcluding a set of deactivated TCI IDs associated with a second set ofTCI state, wherein: the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the first set of TCIstates in DCI, receiving the DCI, and receiving downlink data channelbased on at least one or more TCI states of the first set of TCI statesassigned to a codepoint of a plurality of codepoints associated with theDCI.

Any of the UEs above, wherein the one or more processors are furtherconfigured to configure one or more antennas or antenna ports based onthe at least one of the first set of TCI states.

Any of the UEs above, wherein the at least one MAC CE further comprisesone or more indicators to indicate mappings between the set of activatedTCI IDs and the plurality of codepoints.

Any of the UEs above, wherein the one or more indicators indicatewhether each codepoint of the plurality of codepoints is mapped to oneTCI ID of the set of activated TCI IDs or two TCI IDs of the set ofactivated TCI IDs.

Any of the UEs above, wherein the set of activated TCI IDs are orderedto indicate mapping between the set of activated TCI IDs and theplurality of codepoints.

Any of the UEs above, wherein a first activated TCI ID of the set ofactivated TCI IDs is assigned to the codepoint of the plurality ofcodepoints and a second activated TCI ID of the set of activated TCI IDsis assigned to a second codepoint of the plurality of codepoints.

Any of the UEs above, wherein the plurality of codepoints are ordered toindicate mappings between the set of activated TCI IDs and the pluralityof codepoints.

Any of the UEs above, wherein a first indicator of the one or moreindicators indicates a first activated TCI ID of the set of activatedTCI IDs is associated with the code point of the plurality ofcodepoints, a second indicator of the one or more indicators indicates asecond activated TCI ID of the set of activated TCI IDs is associatedwith the code point of the plurality of codepoints, a third indicator ofthe one or more indicators indicates a third activated TCI ID of the setof activated TCI IDs is associated with a second code point of theplurality of codepoints, and a fourth indicator of the one or moreindicators indicates a fourth activated TCI ID of the set of activatedTCI IDs is associated with the second code point of the plurality ofcodepoints.

An aspect of the present disclosure includes a UE including means forreceiving at least one MAC CE including a set of activated TCI IDsassociated with a first set of TCI states and excluding a set ofdeactivated TCI IDs associated with a second set of TCI state, wherein:the set of activated TCI IDs are assigned to a plurality of codepointswhich indicates values of the first set of TCI states in DCI, means forreceiving the DCI, and means for receiving downlink data channel basedon at least one of the first set of TCI states assigned to a codepointof a plurality of codepoints associated with the DCI.

Any of the UEs above, further comprising means for configuring one ormore antennas or antenna ports based on the at least one of the firstset of TCI states.

Any of the UEs above, wherein the at least one MAC CE further comprisesone or more indicators to indicate mappings between the set of activatedTCI IDs and the plurality of codepoints.

Any of the UEs above, wherein the one or more indicators indicatewhether each codepoint of the plurality of codepoints is mapped to oneTCI ID of the set of activated TCI IDs or two TCI IDs of the set ofactivated TCI IDs.

Any of the UEs above, wherein the set of activated TCI IDs are orderedto indicate mapping between the set of activated TCI IDs and theplurality of codepoints.

Any of the UEs above, wherein a first activated TCI ID of the set ofactivated TCI IDs is assigned to the codepoint of the plurality ofcodepoints and a second activated TCI ID of the set of activated TCI IDsis assigned to a second codepoint of the plurality of codepoints.

Any of the UEs above, wherein the plurality of codepoints are ordered toindicate mappings between the set of activated TCI IDs and the pluralityof codepoints.

Any of the UEs above, wherein a first indicator of the one or moreindicators indicates a first activated TCI ID of the set of activatedTCI IDs is associated with the code point of the plurality ofcodepoints, a second indicator of the one or more indicators indicates asecond activated TCI ID of the set of activated TCI IDs is associatedwith the code point of the plurality of codepoints, a third indicator ofthe one or more indicators indicates a third activated TCI ID of the setof activated TCI IDs is associated with a second code point of theplurality of codepoints, and a fourth indicator of the one or moreindicators indicates a fourth activated TCI ID of the set of activatedTCI IDs is associated with the second code point of the plurality ofcodepoints.

Some aspects of the present disclosure include non-transitory computerreadable media having instructions stored therein that, when executed byone or more processors of a UE, cause the one or more processors toperform the steps of receiving at least one MAC CE including a set ofactivated TCI IDs associated with a first set of TCI states andexcluding a set of deactivated TCI IDs associated with a second set ofTCI state, wherein: the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the first set of TCIstates in DCI, receiving the DCI, and receiving downlink data channelbased on at least one or more TCI states of the first set of TCI statesassigned to a codepoint of a plurality of codepoints associated with theDCI.

Any of the non-transitory computer readable media above, furthercomprising instructions that, when executed by the one or moreprocessors, cause the one or more processors to configure one or moreantennas or antenna ports based on the at least one of the first set ofTCI states.

Any of the non-transitory computer readable media above, wherein the atleast one MAC CE further comprises one or more indicators to indicatemappings between one or more TCI IDs of the set of activated TCI IDs andthe plurality of codepoints.

Any of the non-transitory computer readable media above, wherein the oneor more indicators indicate whether each codepoint of the plurality ofcodepoints is mapped to one TCI ID of the set of activated TCI IDs ortwo TCI IDs of the set of activated TCI IDs.

Any of the non-transitory computer readable media above, wherein the setof activated TCI IDs are ordered to indicate mapping between the set ofactivated TCI IDs and the plurality of codepoints.

Any of the non-transitory computer readable media above, wherein a firstactivated TCI ID of the set of activated TCI IDs is assigned to thecodepoint of the plurality of codepoints and a second activated TCI IDof the set of activated TCI IDs is assigned to a second codepoint of theplurality of codepoints.

Any of the non-transitory computer readable media above, wherein theplurality of codepoints are ordered to indicate mappings between the setof activated TCI IDs and the plurality of codepoints.

Any of the non-transitory computer readable media above, wherein a firstindicator of the one or more indicators indicates a first activated TCIID of the set of activated TCI IDs is associated with the code point ofthe plurality of codepoints, a second indicator of the one or moreindicators indicates a second activated TCI ID of the set of activatedTCI IDs is associated with the code point of the plurality ofcodepoints, a third indicator of the one or more indicators indicates athird activated TCI ID of the set of activated TCI IDs is associatedwith a second code point of the plurality of codepoints, and a fourthindicator of the one or more indicators indicates a fourth activated TCIID of the set of activated TCI IDs is associated with the second codepoint of the plurality of codepoints.

The above detailed description set forth above in connection with theappended drawings describes examples and does not represent the onlyexamples that may be implemented or that are within the scope of theclaims. The term “example,” when used in this description, means“serving as an example, instance, or illustration,” and not “preferred”or “advantageous over other examples.” The detailed description includesspecific details for the purpose of providing an understanding of thedescribed techniques. These techniques, however, may be practicedwithout these specific details. For example, changes may be made in thefunction and arrangement of elements discussed without departing fromthe scope of the disclosure. Also, various examples may omit,substitute, or add various procedures or components as appropriate. Forinstance, the methods described may be performed in an order differentfrom that described, and various steps may be added, omitted, orcombined. Also, features described with respect to some examples may becombined in other examples. In some instances, well-known structures andapparatuses are shown in block diagram form in order to avoid obscuringthe concepts of the described examples.

It should be noted that the techniques described herein may be used forvarious wireless communication networks such as CDMA, TDMA, FDMA, OFDMA,SC-FDMA, and other systems. The terms “system” and “network” are oftenused interchangeably. A CDMA system may implement a radio technologysuch as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc.CDMA2000 covers IS-2000, IS-95, and IS-856 standards. IS-2000 Releases 0and A are commonly referred to as CDMA2000 1×, 1×, etc. IS-856 (TIA-856)is commonly referred to as CDMA2000 1×EV-DO, High Rate Packet Data(HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants ofCDMA. A TDMA system may implement a radio technology such as GlobalSystem for Mobile Communications (GSM). An OFDMA system may implement aradio technology such as Ultra Mobile Broadband (UMB), Evolved UTRA(E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20,Flash-OFDM™, etc. UTRA and E-UTRA are part of Universal MobileTelecommunication System (UMTS). 3GPP LTE and LTE-Advanced (LTE-A) arenew releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A,and GSM are described in documents from an organization named “3rdGeneration Partnership Project” (3GPP). CDMA2000 and UMB are describedin documents from an organization named “3rd Generation PartnershipProject 2” (3GPP2). The techniques described herein may be used for thesystems and radio technologies mentioned above as well as other systemsand radio technologies, including cellular (e.g., LTE) communicationsover a shared radio frequency spectrum band. The description herein,however, describes an LTE/LTE-A system or 5G system for purposes ofexample, and LTE terminology is used in much of the description below,although the techniques may be applicable other next generationcommunication systems.

Information and signals may be represented using any of a variety ofdifferent technologies and techniques. For example, data, instructions,commands, information, signals, bits, symbols, and chips that may bereferenced throughout the above description may be represented byvoltages, currents, electromagnetic waves, magnetic fields or particles,optical fields or particles, computer-executable code or instructionsstored on a computer-readable medium, or any combination thereof.

The various illustrative blocks and components described in connectionwith the disclosure herein may be implemented or performed with aspecially-programmed device, such as but not limited to a processor, adigital signal processor (DSP), an ASIC, a FPGA or other programmablelogic device, a discrete gate or transistor logic, a discrete hardwarecomponent, or any combination thereof designed to perform the functionsdescribed herein. A specially-programmed processor may be amicroprocessor, but in the alternative, the processor may be anyconventional processor, controller, microcontroller, or state machine. Aspecially-programmed processor may also be implemented as a combinationof computing devices, e.g., a combination of a DSP and a microprocessor,multiple microprocessors, one or more microprocessors in conjunctionwith a DSP core, or any other such configuration.

The functions described herein may be implemented in hardware, softwareexecuted by a processor, firmware, or any combination thereof. Ifimplemented in software executed by a processor, the functions may bestored on or transmitted over as one or more instructions or code on anon-transitory computer-readable medium. Other examples andimplementations are within the scope and spirit of the disclosure andappended claims. For example, due to the nature of software, functionsdescribed above may be implemented using software executed by aspecially programmed processor, hardware, firmware, hardwiring, orcombinations of any of these. Features implementing functions may alsobe physically located at various positions, including being distributedsuch that portions of functions are implemented at different physicallocations. Also, as used herein, including in the claims, “or” as usedin a list of items prefaced by “at least one of” indicates a disjunctivelist such that, for example, a list of “at least one of A, B, or C”means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

Computer-readable media includes both computer storage media andcommunication media including any medium that facilitates transfer of acomputer program from one place to another. A storage medium may be anyavailable medium that may be accessed by a general purpose or specialpurpose computer. By way of example, and not limitation,computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM or otheroptical disk storage, magnetic disk storage or other magnetic storagedevices, or any other medium that may be used to carry or store desiredprogram code means in the form of instructions or data structures andthat may be accessed by a general-purpose or special-purpose computer,or a general-purpose or special-purpose processor. Also, any connectionis properly termed a computer-readable medium. For example, if thesoftware is transmitted from a website, server, or other remote sourceusing a coaxial cable, fiber optic cable, twisted pair, digitalsubscriber line (DSL), or wireless technologies such as infrared, radio,and microwave, then the coaxial cable, fiber optic cable, twisted pair,DSL, or wireless technologies such as infrared, radio, and microwave areincluded in the definition of medium. Disk and disc, as used herein,include compact disc (CD), laser disc, optical disc, digital versatiledisc (DVD), floppy disk and Blu-ray disc where disks usually reproducedata magnetically, while discs reproduce data optically with lasers.Combinations of the above are also included within the scope ofcomputer-readable media.

The previous description of the disclosure is provided to enable aperson skilled in the art to make or use the disclosure. Variousmodifications to the disclosure will be readily apparent to thoseskilled in the art, and the common principles defined herein may beapplied to other variations without departing from the spirit or scopeof the disclosure. Furthermore, although elements of the describedaspects may be described or claimed in the singular, the plural iscontemplated unless limitation to the singular is explicitly stated.Additionally, all or a portion of any aspect may be utilized with all ora portion of any other aspect, unless stated otherwise. Thus, thedisclosure is not to be limited to the examples and designs describedherein but is to be accorded the widest scope consistent with theprinciples and novel features disclosed herein.

What is claimed is:
 1. A method of wireless communication by a userequipment (UE), comprising: receiving at least one MAC CE including aset of activated TCI IDs associated with a first set of TCI states andexcluding a set of deactivated TCI IDs associated with a second set ofTCI state, wherein: the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the first set of TCIstates in downlink control information (DCI); and receiving the DCI; andreceiving downlink data channel based on at least one or more TCI statesof the first set of TCI states assigned to a codepoint of a plurality ofcodepoints associated with the DCI.
 2. The method of claim 1, furthercomprising configuring one or more antennas or antenna ports based onthe at least one of the first set of TCI states.
 43. The method of claim1, wherein the at least one MAC CE further comprises one or moreindicators to indicate mappings between one or more TCI IDs of the setof activated TCI IDs and the plurality of codepoints.
 4. The method ofclaim 1, wherein the one or more indicators indicate whether eachcodepoint of the plurality of codepoints is mapped to one TCI ID of theset of activated TCI IDs or two TCI IDs of the set of activated TCI IDs.5. The method of claim 1, wherein the set of activated TCI IDs areordered to indicate mapping between the set of activated TCI IDs and theplurality of codepoints.
 6. The method of claim 5, wherein a firstactivated TCI ID of the set of activated TCI IDs is assigned to thecodepoint of the plurality of codepoints and a second activated TCI IDof the set of activated TCI IDs is assigned to a second codepoint of theplurality of codepoints.
 7. The method of claim 5, wherein the pluralityof codepoints are ordered to indicate mappings between the set ofactivated TCI IDs and the plurality of codepoints.
 8. The method ofclaim 7, wherein: a first indicator of the one or more indicatorsindicates a first activated TCI ID of the set of activated TCI IDs isassociated with the code point of the plurality of codepoints; a secondindicator of the one or more indicators indicates a second activated TCIID of the set of activated TCI IDs is associated with the code point ofthe plurality of codepoints; a third indicator of the one or moreindicators indicates a third activated TCI ID of the set of activatedTCI IDs is associated with a second code point of the plurality ofcodepoints; and a fourth indicator of the one or more indicatorsindicates a fourth activated TCI ID of the set of activated TCI IDs isassociated with the second code point of the plurality of codepoints. 9.A user equipment (UE), comprising: a memory comprising instructions; atransceiver; and one or more processors operatively coupled with thememory and the transceiver, the one or more processors configured toexecute the instructions to: receive, via the transceiver, at least oneMAC CE including a set of activated TCI IDs associated with a first setof TCI states and excluding a set of deactivated TCI IDs associated witha second set of TCI state, wherein: the set of activated TCI IDs areassigned to a plurality of codepoints which indicates values of thefirst set of TCI stats in downlink control information (DCI); andreceive, via the transceiver, the DCI; and receive, via the transceiver,downlink data channel based on at least one or more TCI states of thefirst set of TCI states assigned to a codepoint of a plurality ofcodepoints associated with the DCI.
 10. The UE of claim 9, wherein theone or more processors are further configured to execute theinstructions to configure one or more antennas or antenna ports based onthe at least one of the first set of TCI states.
 11. The UE of claim 9,wherein the at least one MAC CE further comprises one or more indicatorsto indicate mappings between one or more TCI IDs of the set of activatedTCI IDs and the plurality of codepoints.
 12. The UE of claim 9, whereinthe one or more indicators indicate whether each codepoint of theplurality of codepoints is mapped to one TCI ID of the set of activatedTCI IDs or two TCI IDs of the set of activated TCI IDs.
 13. The UE ofclaim 9, wherein the set of activated TCI IDs are ordered to indicatemapping between the set of activated TCI IDs and the plurality ofcodepoints.
 14. The UE of claim 13, wherein a first activated TCI ID ofthe set of activated TCI IDs is assigned to the codepoint of theplurality of codepoints and a second activated TCI ID of the set ofactivated TCI IDs is assigned to a second codepoint of the plurality ofcodepoints.
 15. The UE of claim 13, wherein the plurality of codepointsare ordered to indicate mappings between the set of activated TCI IDsand the plurality of codepoints.
 16. The UE of claim 15, wherein: afirst indicator of the one or more indicators indicates a firstactivated TCI ID of the set of activated TCI IDs is associated with thecode point of the plurality of codepoints; a second indicator of the oneor more indicators indicates a second activated TCI ID of the set ofactivated TCI IDs is associated with the code point of the plurality ofcodepoints; a third indicator of the one or more indicators indicates athird activated TCI ID of the set of activated TCI IDs is associatedwith a second code point of the plurality of codepoints; and a fourthindicator of the one or more indicators indicates a fourth activated TCIID of the set of activated TCI IDs is associated with the second codepoint of the plurality of codepoints.
 17. A user equipment (UE),comprising: means for receiving, via the transceiver, at least one MACCE including a set of activated TCI IDs associated with a first set ofTCI states and excluding a set of deactivated TCI IDs associated with asecond set of TCI state, wherein: the set of activated TCI IDs areassigned to a plurality of codepoints which indicates values of thefirst set of TCI states in downlink control information (DCI); and meansfor receiving the DCI; and means for receiving, via the transceiver,downlink data channel based on at least one or more TCI states of thefirst set of TCI states assigned to a codepoint of a plurality ofcodepoints associated with the DCI.
 18. The UE of claim 17, furthercomprises means for configuring one or more antennas or antenna portsbased on the at least one of the first set of TCI states.
 19. The UE ofclaim 17, wherein the at least one MAC CE further comprises one or moreindicators to indicate mappings between one or more TCI IDs of the setof activated TCI IDs and the plurality of codepoints.
 20. The UE ofclaim 17, wherein the one or more indicators indicate whether eachcodepoint of the plurality of codepoints is mapped to one TCI ID of theset of activated TCI IDs or two TCI IDs of the set of activated TCI IDs.21. The UE of claim 17, wherein the set of activated TCI IDs are orderedto indicate mapping between the set of activated TCI IDs and theplurality of codepoints.
 22. The UE of claim 21, wherein a firstactivated TCI ID of the set of activated TCI IDs is assigned to thecodepoint of the plurality of codepoints and a second activated TCI IDof the set of activated TCI IDs is assigned to a second codepoint of theplurality of codepoints.
 23. The UE of claim 21, wherein the pluralityof codepoints are ordered to indicate mappings between the set ofactivated TCI IDs and the plurality of codepoints.
 24. The UE of claim23, wherein: a first indicator of the one or more indicators indicates afirst activated TCI ID of the set of activated TCI IDs is associatedwith the code point of the plurality of codepoints; a second indicatorof the one or more indicators indicates a second activated TCI ID of theset of activated TCI IDs is associated with the code point of theplurality of codepoints; a third indicator of the one or more indicatorsindicates a third activated TCI ID of the set of activated TCI IDs isassociated with a second code point of the plurality of codepoints; anda fourth indicator of the one or more indicators indicates a fourthactivated TCI ID of the set of activated TCI IDs is associated with thesecond code point of the plurality of codepoints.
 25. A method ofcommunication by a base station (BS), comprising: determining a set ofactivated transmission configuration indicator (TCI) states wherein: theset of activated TCI states is associated with a set of activated TCIidentifiers (IDs), the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the set of activatedTCI states in downlink control information (DCI); and generating atleast one MAC CE including the set of activated TCI IDs and excluding aset of deactivated TCI IDs associated with a set of deactivated TCIstates, wherein at least one or more TCI states of the set of activatedTCI states is assigned to a codepoint of a plurality of codepoints;transmitting the at least one MAC CE; and transmitting the DCI.
 26. Themethod of claim 25, wherein the set of activated TCI IDs are ordered toindicate mapping between the set of activated TCI IDs and the pluralityof codepoints.
 27. The method of claim 25, wherein a first activated TCIID of the set of activated TCI IDs is assigned to the codepoint of theplurality of codepoints and a second activated TCI ID of the set ofactivated TCI IDs is assigned to a second codepoint of the plurality ofcodepoints.
 28. The method of claim 25, wherein the plurality ofcodepoints are ordered to indicate mappings between the set of activatedTCI IDs and the plurality of codepoints.
 29. The method of claim 28,wherein: a first indicator of the one or more indicators indicates afirst activated TCI ID of the set of activated TCI IDs is associatedwith the code point of the plurality of codepoints; a second indicatorof the one or more indicators indicates a second activated TCI ID of theset of activated TCI IDs is associated with the code point of theplurality of codepoints; a third indicator of the one or more indicatorsindicates a third activated TCI ID of the set of activated TCI IDs isassociated with a second code point of the plurality of codepoints; anda fourth indicator of the one or more indicators indicates a fourthactivated TCI ID of the set of activated TCI IDs is associated with thesecond code point of the plurality of codepoints.
 30. A base station(BS), comprising: a memory comprising instructions; a transceiver; andone or more processors operatively coupled with the memory and thetransceiver, the one or more processors configured to execute theinstructions to: determine a set of activated transmission configurationindicator (TCI) states wherein: the set of activated TCI states isassociated with a set of activated TCI identifiers (IDs), the set ofactivated TCI IDs are assigned to a plurality of codepoints whichindicates values of the set of activated TCI states in downlink controlinformation (DCI); and generate at least one MAC CE including the set ofactivated TCI IDs and excluding a set of deactivated TCI IDs associatedwith a set of deactivated TCI states, wherein at least one or more TCIstates of the set of activated TCI states is assigned to a codepoint ofa plurality of codepoints; transmit the at least one MAC CE; andtransmit the DCI.
 31. The BS of claim 30, wherein the set of activatedTCI IDs are ordered to indicate mapping between the set of activated TCIIDs and the plurality of codepoints.
 32. The BS of claim 30, wherein afirst activated TCI ID of the set of activated TCI IDs is assigned tothe codepoint of the plurality of codepoints and a second activated TCIID of the set of activated TCI IDs is assigned to a second codepoint ofthe plurality of codepoints.
 33. The BS of claim 30, wherein theplurality of codepoints are ordered to indicate mappings between the setof activated TCI IDs and the plurality of codepoints.
 34. The BS ofclaim 33, wherein: a first indicator of the one or more indicatorsindicates a first activated TCI ID of the set of activated TCI IDs isassociated with the code point of the plurality of codepoints; a secondindicator of the one or more indicators indicates a second activated TCIID of the set of activated TCI IDs is associated with the code point ofthe plurality of codepoints; a third indicator of the one or moreindicators indicates a third activated TCI ID of the set of activatedTCI IDs is associated with a second code point of the plurality ofcodepoints; and a fourth indicator of the one or more indicatorsindicates a fourth activated TCI ID of the set of activated TCI IDs isassociated with the second code point of the plurality of codepoints.35. A base station (BS), comprising: means for determining a set ofactivated transmission configuration indicator (TCI) states wherein: theset of activated TCI states is associated with a set of activated TCIidentifiers (IDs), the set of activated TCI IDs are assigned to aplurality of codepoints which indicates values of the set of activatedTCI states in downlink control information (DCI); and means forgenerating at least one MAC CE including the set of activated TCI IDsand excluding a set of deactivated TCI IDs associated with a set ofdeactivated TCI states, wherein at least one or more TCI states of theset of activated TCI states is assigned to a codepoint of a plurality ofcodepoints; means for transmitting the at least one MAC CE; and meansfor transmitting the DCI.
 36. The method of claim 35, wherein the set ofactivated TCI IDs are ordered to indicate mapping between the set ofactivated TCI IDs and the plurality of codepoints.
 37. The method ofclaim 35, wherein a first activated TCI ID of the set of activated TCIIDs is assigned to the codepoint of the plurality of codepoints and asecond activated TCI ID of the set of activated TCI IDs is assigned to asecond codepoint of the plurality of codepoints.
 38. The method of claim35, wherein the plurality of codepoints are ordered to indicate mappingsbetween the set of activated TCI IDs and the plurality of codepoints.39. The method of claim 38, wherein: a first indicator of the one ormore indicators indicates a first activated TCI ID of the set ofactivated TCI IDs is associated with the code point of the plurality ofcodepoints; a second indicator of the one or more indicators indicates asecond activated TCI ID of the set of activated TCI IDs is associatedwith the code point of the plurality of codepoints; a third indicator ofthe one or more indicators indicates a third activated TCI ID of the setof activated TCI IDs is associated with a second code point of theplurality of codepoints; and a fourth indicator of the one or moreindicators indicates a fourth activated TCI ID of the set of activatedTCI IDs is associated with the second code point of the plurality ofcodepoints.